Channel and Coding Implementation » History » Version 10
PASCHOS, Alexandros, 12/15/2015 02:49 AM
| 1 | 7 | PASCHOS, Alexandros | {{toc}} |
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| 2 | 7 | PASCHOS, Alexandros | |
| 3 | 9 | PASCHOS, Alexandros | h1. *Channel and Coding Implementation* |
| 4 | 1 | PASCHOS, Alexandros | |
| 5 | 9 | PASCHOS, Alexandros | h2. *AWGN Channel* |
| 6 | 8 | PASCHOS, Alexandros | |
| 7 | 10 | PASCHOS, Alexandros | After establishing a basic channel, AWGN was then added as shown on Figure 5.5. The AWGN function has an Eb/No input, which is the target Eb/No of the signal (the Eb/No received). |
| 8 | 1 | PASCHOS, Alexandros | |
| 9 | 3 | PASCHOS, Alexandros | p=. !{width: 60%}https://sourceforge.isae.fr/attachments/download/1503/withAWGN.png(AWGN Implementation)! |
| 10 | 10 | PASCHOS, Alexandros | _Figure 5.5 Communication Diagram_ |
| 11 | 1 | PASCHOS, Alexandros | |
| 12 | 9 | PASCHOS, Alexandros | h2. *Coding* |
| 13 | 1 | PASCHOS, Alexandros | |
| 14 | 10 | PASCHOS, Alexandros | In order to further improve the communication chain, coding is applied to this channel, a illustrated in Figure 5.6. At this point, as mentioned in the limitations, synchronization between the two USRP was an issue since the received bits did not keep a fixed value, but rather kept changing (between 0 and 1) throughout the test, giving a BER of 1. For this reason, it was necessary to calculate the BER without the use of USRPs. |
| 15 | 4 | PASCHOS, Alexandros | |
| 16 | 6 | PASCHOS, Alexandros | p=. !{width: 60%}https://sourceforge.isae.fr/attachments/download/1505/withCoding.png(Channel and Coding)! |
| 17 | 10 | PASCHOS, Alexandros | _Figure 5.6 AWGN and Coding_ |